Eu não penso LinkMan suporta o RegEx, mas:
What makes Linkman special is its sheer speed that allows you to find your bookmarks quickly. Just start typing a keyword and get results within a second, even with very large databases. By default Linkman uses wildcards and the AND operator to combine search terms, but you can also use OR, AND NOT and the "-" sign in your searches. Example: a search for news computer -games will find all links containing the keyword news AND the keyword computer, but NOT containing the keyword games.